Microstructures of 2,5-dialkyl benzene sulfonate micelles studied using H-1 NMR

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	Microstructures of 2,5-dialkyl benzene sulfonate micelles studied using H-1 NMR
	Yuan, HZ ; Wang, L ; Cheng, GZ ; Zhao, S ; Mao, SZ ; Yu, JY ; Du, YR
刊名	ACTA PHYSICO-CHIMICA SINICA
	2006
卷号	22 期号:12 页码:1435
关键词	MAGNETIC-RESONANCE CHEMICAL-SHIFTS NMR SURFACTANTS AGGREGATION WATER MICELLIZATION SYSTEMS PHASES C-13
ISSN号	1000-6818
通讯作者	Du, YR: Chinese Acad Sci, Wuhan Inst Phys & math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China.
中文摘要	Micellization of a series of newly synthesized dialkyl benzene sulfonates was studied using proton chemical shift changes, spin-lattice, and spin-spin relaxation NMR spectroscopy, and two-dimensional nuclear Overhauser enhancement spectroscopy (2D NOESY). The o-substituted chains are normal alkyl chains with varying lengths, and the m-substituted ones are branched alkyl chains. The results showed that the longer the o-substituted normal alkyl chain, protons of more methylene groups participated in the formation of the rigid surface layer of the hydrophobic micellar core. Consequently, the larger was the area per molecule adsorbed on the interface between oil and water at saturation. The branched m-substituted alkyl chains of the dialkyl benzene sulfonates were less tightly packed than the o-substituted normal alkyl chains in the hydrophobic micellar cores. The shorter the m-substituted branched alkyl chains, the looser they were packed in the hydrophobic micellar core. The relative arrangement of the surfactant molecules in the micelles was elucidated.
收录类别	SCI
语种	中文
公开日期	2013-09-18
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/42144]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Yuan, HZ,Wang, L,Cheng, GZ,et al. Microstructures of 2,5-dialkyl benzene sulfonate micelles studied using H-1 NMR[J]. ACTA PHYSICO-CHIMICA SINICA,2006,22(12):1435.
APA	Yuan, HZ.,Wang, L.,Cheng, GZ.,Zhao, S.,Mao, SZ.,...&Du, YR.(2006).Microstructures of 2,5-dialkyl benzene sulfonate micelles studied using H-1 NMR.ACTA PHYSICO-CHIMICA SINICA,22(12),1435.
MLA	Yuan, HZ,et al."Microstructures of 2,5-dialkyl benzene sulfonate micelles studied using H-1 NMR".ACTA PHYSICO-CHIMICA SINICA 22.12(2006):1435.